dc.contributor.author | Viggen, Erlend Magnus | |
dc.contributor.author | Johansen, Tonni Franke | |
dc.contributor.author | Merciu, Ioan Alexandru | |
dc.date.accessioned | 2017-02-03T10:08:58Z | |
dc.date.available | 2017-02-03T10:08:58Z | |
dc.date.created | 2016-11-25T15:48:45Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | NDT & E international. 2016, 85 72-75. | nb_NO |
dc.identifier.issn | 0963-8695 | |
dc.identifier.uri | http://hdl.handle.net/11250/2429414 | |
dc.description.abstract | Current methods for ultrasonic pitch-catch well logging use two receivers to log the bonded material outside a single casing. For two casings separated by a fluid, we find by simulation that increasing the number of receivers provides a better picture of the effect of the bonded material outside the second casing. Inverting simulated measurements with five receivers, using a simulated annealing algorithm and a simple forward model, we find for a subset of simulations that we can estimate the impedance of the material outside the outer casing. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.subject | Ultralyd | nb_NO |
dc.subject | Ultrasound | nb_NO |
dc.subject | Brønnlogging | nb_NO |
dc.subject | Well Logging | nb_NO |
dc.subject | Akustikk | nb_NO |
dc.subject | Acoustics | nb_NO |
dc.title | Simulation and inversion of ultrasonic pitch-catch through-tubing well logging with an array of receivers | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.subject.nsi | VDP::Petroleumsteknologi: 512 | nb_NO |
dc.subject.nsi | VDP::Petroleum engineering: 512 | nb_NO |
dc.source.pagenumber | 72-75 | nb_NO |
dc.source.volume | 85 | nb_NO |
dc.source.journal | NDT & E international | nb_NO |
dc.identifier.doi | 10.1016/j.ndteint.2016.10.008 | |
dc.identifier.cristin | 1404384 | |
cristin.unitcode | 7401,90,21,0 | |
cristin.unitname | Akustikk | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 1 | |